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<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        //#region 
        //#endregion
        let a = 'name'
        let b = 'name2'
        let obj = {}
        obj.a = 'carlos'//a:'carlos'
        // console.log(obj);
        obj[b] = 'carlos'
        console.log(obj);//a: "carlos", name2: "carlos"
    </script>
</body>

</html>